SPC AC 281227
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0627 AM CST SUN FEB 28 2010
VALID 281300Z - 011200Z
...NO SVR TSTM AREAS FORECAST...
...SYNOPSIS...
A SRN STREAM SHORTWAVE TROUGH OVER SRN AZ AND NW MEXICO THIS MORNING
WILL PROGRESS EWD TO CENTRAL TX BY EARLY MONDAY MORNING. A FOCUSED
BELT OF ASCENT ASSOCIATED WITH LOW-LEVEL WAA AND THE LEFT EXIT
REGION OF THE MID-UPPER JET WILL CONTRIBUTE TO A BAND OF
PRECIPITATION SPREADING EWD ACROSS NM AND W TX TODAY...AND
CENTRAL/SE TX OVERNIGHT. CONDITIONALLY UNSTABLE MIDLEVEL LAPSE
RATES ACCOMPANYING THE MIDLEVEL COLD POOL WILL CONTRIBUTE TO THE
POTENTIAL FOR WEAK INSTABILITY AND ISOLATED THUNDERSTORMS WITHIN THE
LARGER PRECIPITATION BAND. LOW-LEVEL MOISTURE RETURN INTO TX WILL
BE LIMITED BY THE MOST RECENT FROPA ACROSS THE GULF OF MEXICO AND
SHORT-DURATION TRAJECTORIES ACROSS THE WARMER GULF WATERS...THUS
THUNDERSTORM COVERAGE/INTENSITY SHOULD LIKEWISE REMAIN LIMITED
THROUGH THE PERIOD.
..THOMPSON.. 02/28/2010
CLICK TO GET WUUS01 PTSDY1 PRODUCT
NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 1630Z
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